[QUOTE=bgk202;2247927]Does anybody have instructions on how to adjust the throttle linkages. There are two rods to adjust (one that goes to the inj. pump, and another that goes to the manifold side of the engine).

What does the linkage on the manifold side of the engine do?[/QUOTE]


If you look inside of your intake manifold and you have a Valve in there (a Butterfly Valve) attached to the linkage; it is there to create Vacuum for the Vacuum Governor on the back of your Fuel Injection Pump (you should also have a hose or tubing going from the Intake Manifold to the back of the Governor).
I would not mess with any off the Linkeage until you can get detailed info. Unfortunately my CD Manual is for a 123 not a 115 so I cannot help.

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84 300D, 82 Volvo 244Gl Diesel